Flying-machine.



Patehted July 30; 1912.

2 SHEETS-SHEET 1.

FlGzl.

I. H. STOREY.

FLYING MACHINE.

APPLIOATION FILED MAR. 30, 1912.

1,034,042. Patented July 30, 1912.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

ISAAC HENRY STOREY, OF AMBLESIDE, ENGLAND.

FLYING-MACHINE.

To all whom it may concern:

Be it known that I, ISAAC HENRY STOREY, a subject of the King of Great Britain and Ireland, residing in Ambleside, in VVestmoreland county, England, have invented new and useful Improvements in Flying-Machines, of which the following is the specifloat-ion.

This invention relates to improvements in aeroplanes in which the wings or planes have a circular or other continuously curved contour and an opening laterally central surrounded by the supporting surface. Hitherto machines of this type were made with a plain straight surface in the direction of motion or longitudinally from their leading edge to the rear edge of the plane. While this form of surface was quite sat-isfactory when the machine was in flight, it had the objection that an undue expenditure of power was necessary to start off the ground. It has also been proposed to make planes of circular contour having central openings, with a radial cross section of the supporting surface in the form of an arched annulus concave on the underside.

According to the present invention the anterior or leading edge, that is to say in front of the transverse center line of the supporting surfaces, is symmetrically on each side of the longitudinal line cambered or deflected downward to the desired angle or curve, the deflected margins thus presenting an angle to the direction of motion horizontally, and having a surface wide in the center and tapering to a point at the ends. The leading edge may be deflected on each side of the longitudinal center line along the chord of an are, or alternatively along an arc struck from a center to the rear of the generating center of the sup porting surface so that the dept-h of the deflected part may be gradually reduced toward the transverse center line. The chord along which the deflected margin is bent may be in some cases parallel with, the trans verse center line of the main surface.

It is known to deflect or camber the leading edge margins in machines having planes with straight edges or straight parallel plane surfaces, but machines so characterized have a different disposition of their supporting surfaces and present a comparatively longer transverse leading edge in the Specification of Letters Patent.

Application filed March 30, 1912.

Patented July 30, 1912. Serial No. 687,402.

direction of motion, the longitudinal supporting surface being small.

By the improvements I obtain stabilizing and lifting effects not present in machines hitherto proposed with the supporting surface distributed equally on each side of the longitudinal and transverse center lines.

In the drawing, a machine of the type referred to and embodying these improvements is shown in several views along with views with modified forms of deflected margins of plane surfaces with curved contours.

Figure 1 represents a side elevation of a biplane made according to this invention; Fig. 2 a front elevation and Fig. 3 a plan of the same. Figs. 4- and 5 represent a plan and longitudinal sect-ion respectively of a supporting surface with a modified deflection of the leading edge margin and Figs. 6 and 7 similar views of a further modification of the same.

Figs. 1 to 8 will be first referred to. The frame is represented by 1, the landing chassis by 2, the motor by 3 and the tractor screw by 4. The construction of the frame and arrangement of the-motor and screw do not form part of this invention. In the ma chine illustrated the supporting surfaces or planes consist of the wings 5, 5 6 and 6 and the longitudinal central webs 7 and 8, between the lower wings 6, and 6 The front of leading edge margin of each supporting or plane surface or arrangement of such is cambered or deflected equally on each side of the longitudinal center line. The cambered parts are represented by 10 and are deflected along the chord 11 of the arc in each case. The angle between the cambered or deflected portions 10 of the wings 5, 5*, 6 and 6, and the amount of the camber will be varied in accordance with the power and speed of the machine and other considerations, for instance, in a fast flying machine with high powered engines the camber or deflection will be less than in slower flying machines.

In Figs. 4 and 5, is shown a modification of the deflected margin. In this case the anterior edge 12 of the plane or planes is deflected continuously as shown at 10 along an are 13 generated from a center to the rear of the generating center of the contour of the main supporting surface, the deflection being greatest in the center. The deflected margin 10 may however be of equal.

width at all parts or concentric with the an- It will be understood from the foregoing" statement that the principal feature of these improvements is a deflected leading edge margin-characterized as herein described on each side of the longitudinal 'center line in a plane with a continuously curved contour.

The contour of the deflected parts is shown having the same curvature as the general contour of the supporting surfaces or planes but this particular curve maybe modified. These improvements are applicable in all cases where the planes have a circular contour in plan surrounding an opening laterally central.

The wings forming the main part of the supporting surface are shown in Figs. 1 to 3 set with a relative dihedral angle. They may be in the same plane. These relative dispositions of the wings do not form part of'this invention.

I claim as my invention 1. A flying machine having a supporting wing surface of a continuously curved or circular contour in plan with the leading edge margin deflected on each side of the longitudinal center line and an opening surrounded by the supporting surface.

2. A flying machine having a supporting surface of an approximately circular form in plan with the leading edge margin on each side of the longitudinal center line deflected along a chord of the circular contour and a centrally disposed opening in said surface surrounded by the same.

3. A flying machine having an annular supporting surface of a circular contour in plan with the leading edge margin on each side of the center line deflected along the chords of the circular contour converging toward the front.

In testimony of which I have hereunto aflixed my signature in the presence of two witnesses.

ISAAC HENRY STOREY.

JAs. H. SHEPHERD.

'Oo'p'iesof this-patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

